First of all, you need to convert mL to L; 120mL = 0.12L, 300mL = 0.3L.
n (moles of carbonic acid) = C (concentration) x V (volume)
n = 0.15M (0.15 mol L-1) x 0.12L
n = 0.018 mol
C (conc. of NaOH) = 0.018 mol x 2 moles (because there’s 2x NaOH) = 0.036 mol
C = n / V
C = 0.036 mol / 0.3 L
C = 0.12 mol L-1
solution:
According to the question we need to convert it into SI units.
= 754 mm / 43 s
= 754 * 10 ^ -3 m / 43 s
=0.017534 m/s
Answer: It’s producing 75% of it’s potential.
Example: If I were to be playing basketbal, and my body was working at 75%, then there is 25% of energy that I’m not using, making me worse than if I was using 100%.